The outer shell of an atom that contains electrons.

Positively charged subatomic particles.

The small, dense region at the center of an atom.

Subatomic Particles with a neutral (no) charge.

The mass of the electron cloud

The mass of a chemical element (protons + neutrons)

The small, dense part of an atom.

The outermost electrons in the electron shell.

The number of valence electrons.

The mass of a chemical element (protons + neutrons).

Subatomic particles with a neutral (no) charge.

The number of protons in an atom.

A model of the atom that shows the nucleus surrounded by circles that have electrons inside them.

A model of the nucleus that shows the protons and neutrons only.

The same thing as the periodic table.

A model that shows ONLY the amount of protons in an atom.

Have a positive charge and are found in the nucleus of an atom.

Have a neutral (no) charge and are found in the nucleus of an atom.

Have a negative charge and are found orbiting the nucleus of an atom.

The system of electrons surrounding the nucleus of an atom.

The positively charged subatomic particles.

Subatomic particles with a neutral charge.

The amount of protons in the nucleus of an atom.

Subatomic particle with a positive charge, found in the nucleus of an atom.

Subatomic particle with a neutral (no) charge, found in the nucleus of an atom.

Subatomic particle with a neutral (no) charge, found in the electron cloud

Neutrons

Electrons

Protons

Neutrons

Electrons

Protons

Neutrons

Protons

Electrons

Positively charged subatomic particle found in the electron cloud of an atom.

Positively charged subatomic particle found in the nucleus of an atom.

Negatively charge subatomic particle found in the electron cloud of an atom.

Electron in the outermost shell of the electron cloud.

Electron in the nucleus.

Electron in the innermost shell of the electron could.